Resilient tire.



Mi 1. NAPIER.

RESILIENT TIRE. APPLICATIN FILED JUN22. 1'914.

1,201,859.r Patented 0016.111916.

I' I I UNiTnn sirnriis' PATENT g MELVIN JAMEs' nar-IER, on DETROIT,ivrIcIiIGAN.-

`3 RnsrLmNT TIRE. y

T 0 all whom t may concern: l Y

Be it known that I., MELVIN J. NAPIER, a citizen ofthe United States,and a resident of Detroit, in the county of Wayne and State of Michigan,have invented a new and Improved Resilient Tire, of which the iol--lowing is a specification. f

This invention relates toa resilient tire for vehicle wheels and itsobject is to provide a construction which may be easily assembled, whichpossesses great flexibility,

.and which will withstand severe usage for 'a relatively long time. l

l This invention consists 1n the details of construction shown Vanddescribed, and particularly pointed out in the claims. Y,

In the accompanying drawing, Figure l is a longitudinal rsection,through -a tire in which my invention is embodied. Fig. 2 is a sectionon the line 2&2 of Fig. 1. Fig. 3 is a plan view showing'the jointbetween adjacent sectionsof the spring. Fig. l is a section on the linef-i ofFig. 3.)

Similar reference Acharacters referto like parts throughout theseveralviews. y

In the embodiment shown, the casing l, of any desired form, inclosesandV protects a soft-rubber pad or cushion 2 of segmental cross-section,the inner face of which isvulcanized to the outer face of a vulcanizedhard-rubber band 3 that extends throughout the circumference of the rim.Embedded in the band 3 are the arc-shaped sections 4 of acircumferential metal spring, preferably bronze or brass, the ends ofwhich' are tapered for a considerable yangular distance and notched toreceive the shank 6 of vva connector by which they are joined. IIheconnector comprisesa relatively smallinner head 7k of any desired form,and a leaf portion 8, the ends of which are tapered to cor respond tothe taper. of the endspof the spring sections, and extendhthrough anumber of degrees ofcurvature'of the rim. .The leaf portions are alsopreferably made of spring brass or bronze, and besidesacting, togetherwith the head 7, toy join'the ends of adjacent spring sections 4, actalso to form parts of the spring `ring itself. Because of the relativelylong taper of each of Specication'of Letters Patent.

y Y ratentedloa1m1916. l Application mea June 22, 1914. serialnamaai. i

the parts,the stress gradually 'transferred` 'i from a particular springsection-to the ad-L jacent endof a connector,and fromthe con nectortothe next adjacentgspring section I on the opposite side ofthe head 7.LWhile I f have shown the head 7 formed .integral with ythe leafvrportion 8,k it isy obvious that it may in some cases be .madein vaseparate piece and secured to the leaf 'i'n'any vdesired manner. It willbe understood lthat the spring band is of suilicientffresiliency towithstand the stresses to which the rim is subjected. y f' j j Inthedevelopment of; this tire, I .at one ltime'usedV a circumferentialspring consisting of a single member, but after using the rim soconstituted for a few u days` it crystalllzed 1n -certain localitieswhich` seemed to correspond'to nodes of veryshort vibra- `tions set upin the spring. I nd'that when a sectional spring is used, these shortvibrations are largely avoided;A and `when the sectional springy isyembedded in hard rubber in the manner shown, crystallization ispractically avoided altogether. "The hard rubber,

while flexible enough to allow the relatively .longf vibrations incidentto the use of the rim, eifectually checks or dampens, or pery haps'doesaway entirely with 'the short vibrations, with the result that thisresilient made of alargerfor smaller number, or may be made yof,asinglefband.l And inlieu of the j hard rubbert inclosure, some other"khard or cemented directly to the metal ofthe springfmay bev used, but Iprefer the hard irubber because of its efiiciency inI overcomflexiblesubstance, such asL canvas vulcanized f `resist the stresses towliich'the tire :is subjected, a hard rubber inclosure in which thek band isembedded andto which it is secured byvulcanization, and a soft rubberpad ex v'tending` cir'cnmferentiallyA of the tire between the hardrubber inclosureV andthe casing and nieuwe@ metes-rubber e e closure.:`

resilienttire'comprising a casing, a

`r`,resilientE metal yband `within thecasing land extending througlicutthe; :circumference thereof, said bandlbeing ofsnliicient strength 'toresist thestiesses't-o which the tire'issub-` jectedfandconsisting of" aseriesl of-fleaf springs arrangedend tef end, and a hard flexibleinclosurefinwhich the springs are einbeJ `ded"`andlto which they are`secured 4.`A"resilient tire comprising a casing, a resilient metalbandWithin the casing and extending throughout "the 'circumferencetliereofyf said band being of Asuilicient strength to resistltliestresses "to which the tire subjected, and consisting of av seriesoffleaffsprings" arranged end to end," l'said Vends'being tapering, andajseries of: connecting members "for theleaffsprings, said connectingmembers having tapering ends corresponding vto, the tapering gends .ofthe leaf springs, the ends fof the connecting members being resilient,`and va hard yflexible inc'lfc'siirc "which the "metal band`einbeildeiill f A 5.1M resilient tire cdniprisingacasing, a

resilient metal ,band within the Casing Y and extending throughout thecircumference strengthto lresist thelstresses te which the tire issubjected, and fcensisting of a series cf leafsprings arrangedie Vdftoend, Asaid v endsbeing tapering, and fa series of connecting lmembersfor 'the leaf springs, said vcon,A necting members fliavingtapering endscurresponding to j 'the tapering k"ends uof y leaf springs, the ends oftheconnecting members in which the sanitaria isfeiiibdlied and to whichas sanitary alcanzara e, 6.; Aures'ilient tire Comprising a casing,j`a

`fesiiientmetaibaifa AWithin the casing-and e extendingfirmante atenumeran@ thereof," said "band [being of suiicient strength to resist`the Vstresses to which the tire is subject-Iemand consisting,'of` aAseries f of" leaf springs arrangedfeiid t'o end, said ends beingtapering, @and lseries of!V connecting members fer theleafsprings,"saidcon necting members having tapering ends correspondingto the tapering ends o-f the leaf springs, the ends of the connectingmembers being resilient, a hard flexible inclosure in which the metalband is embedded, and a soft flexible "pad extending circumferentire yissubjectedyand consisting of a series of leaf springs arranged end toend, said` ends being tapering, and a series of connectling" members`for the leaf springs, said cony necting members havingtaperingendscorre spending to the tapering ends of the leaf springs, the `Aendsvof the Aconnecting members beinglresillient, -a hard rubber inclosurein which the metal bandV isem'beddecl and to which itisfsecured 'byvulcanization, `and :i soft flexible pad extending circumferentially ofthe tire'between the'fhard flexible inclosu-re andtliecasin'g.

V81' A' resilient tire comprising a casing, 'a resilient metal bandwitliin'the casing and `e'xtei'iding Vjthroughout vthe circumferencethereof, -said' band 'being of suflicient strength tof resistthestresses `Ito which the tire is subjected, and consist-ing of a series'ofleaf' springslarranged end to end, said endsbeing tapering, andaseries' of yconnecting membersfor the leaf springs, said connestingmembers having tapering ends corresponding ttlie tapering fendsf'ofthelleaf springs, the 4ends of the V"cnnecting' members being:resilient, la lha-rd rubberA inclosure in wliichthe metal band lis'embedded and to which itis securedby Vulcanization, and

Vsoft rubberf'pacl extending `circumferentially "of the tire 'betweenthe hard rubber inclosure andthe casing and vulcanized to tliefli'a'rd`,rubber inclosulre. 4

"9'."A"='i'esilient tire-comprising a casing, a resilientinetal ban'dwithin thescasing and extending throughout" 'the vcircumference thereof,lsaid" band being of `-:sufficient strength to resist r'the stresses towhich the ti'rissubjected, anidconsi-sting of aseries -offjlea'f'springs arranged endto end, said .ofjltlie connectingv membersfbeingresilient,

means for v securing the' connecting `members in angular position inrespect to the leaf springs," and a hard rubber inclosure inwliiclrtlie'fmetal band is embedded A,and to whichit is securedEbyvulca-nization.

` resilient tire comprising a casing,

a resilient metal band Within the casing and In testimony whereof I havesigned this extending throughout the circumference specification in thepresence of two subthereof, and consisting of a series of leal:lscribing Witnesses.

springs arranged end t0 end, and a hard MELVIN JAMES NAPIER. flexibleinclosure in which the springs are Witnesses:

embedded and to which they are secured EDWARD N. PAGELSEN,

throughout the area of Contact. HUGO W; KREINBRING.

Copies of this patent may be obtained/'infor ve cents each, byaddressing the Commissioner of Patents,

Washington, D. C. f

